Move the test template to //testing/test.gni (part 2)

net/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/module_args/v8.gni")
 import("//url/config.gni")
+import("//testing/rules.gni")
 
 # TODO(cjhopman): //build/config/android/rules.gni also imports grit_rule.gni.
 # Currently, that file can't be imported multiple times.  Make this always
 # imported when http://crbug.com/393704 is fixed.
 if (!is_android) {
   import("//tools/grit/grit_rule.gni")
 }
 
 if (is_android) {
   import("//build/config/android/config.gni")
@@ skipping 1383 matching lines @@
       "quic/quic_server_bin.cc",
     ]
     deps = [
       ":quic_tools",
       ":net",
       "//base",
       "//third_party/boringssl",
     ]
   }
 }  # !is_android && !is_win && !is_mac